BT	Buccal alveolar bone thickness
BH	Buccal alveolar bone height
CBCT	Cone beam computed tomography
RPE	Rapid palatal expander
MLSAE	Leaf spring activated expander
MARPE	Miniscrew assisted rapid palatal expansion
RME	Rapid maxillary expansion
SME	Slow maxillary expansion
LE	Leaf expander
HHA	Hybrid Hyrax Appliance
HHG	Hybrid Hyrax group
HG	Conventional Hyrax group
IW	Inter-molar width
MSG	Memory screw group
MS	Memory screw
HSG	Hyrax screw group
TAD’s	temporary anchorage device
TMJ	temporary mandibular joint